I scramble eggs for my birds with crushed shell still in them - and they LOVE the stuff - the little cannibals!I'm glad that you haven't seen any more blood in the poop. I hope you continue to see improvement.
Keep encouraging her to drink and eat like you have been doing. You may entice all the chicks to eat with a bit of scrambled egg stirred into a mash made of their feed. My chick(en)s love scrambled eggs.
Let us know how they are doing!